[INFO] fetching crate tcplscan 0.1.4...
[INFO] checking tcplscan-0.1.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tcplscan 0.1.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate tcplscan 0.1.4 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tcplscan 0.1.4
[INFO] finished tweaking crates.io crate tcplscan 0.1.4
[INFO] tweaked toml for crates.io crate tcplscan 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate tcplscan 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fe75b18b5fb7712b0ca6057fc4598b2b98210a2eb83ee10bc5c314642cf593f
[INFO] running `Command { std: "docker" "start" "-a" "9fe75b18b5fb7712b0ca6057fc4598b2b98210a2eb83ee10bc5c314642cf593f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe75b18b5fb7712b0ca6057fc4598b2b98210a2eb83ee10bc5c314642cf593f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe75b18b5fb7712b0ca6057fc4598b2b98210a2eb83ee10bc5c314642cf593f", kill_on_drop: false }`
[INFO] [stdout] 9fe75b18b5fb7712b0ca6057fc4598b2b98210a2eb83ee10bc5c314642cf593f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2af83a9826a1c8055b1aa765238e781211a2a6fba28306b315fef2e9c5425958
[INFO] running `Command { std: "docker" "start" "-a" "2af83a9826a1c8055b1aa765238e781211a2a6fba28306b315fef2e9c5425958", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking tcplscan v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `classes` is never read
[INFO] [stdout]    --> src/indexing/parser.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub struct Parser {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub classes: Vec<Class>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `classes` is never read
[INFO] [stdout]    --> src/indexing/parser.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub struct Parser {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub classes: Vec<Class>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "2af83a9826a1c8055b1aa765238e781211a2a6fba28306b315fef2e9c5425958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2af83a9826a1c8055b1aa765238e781211a2a6fba28306b315fef2e9c5425958", kill_on_drop: false }`
[INFO] [stdout] 2af83a9826a1c8055b1aa765238e781211a2a6fba28306b315fef2e9c5425958
[INFO] checking tcplscan-0.1.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate tcplscan 0.1.4 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate tcplscan 0.1.4 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tcplscan 0.1.4
[INFO] finished tweaking crates.io crate tcplscan 0.1.4
[INFO] tweaked toml for crates.io crate tcplscan 0.1.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate tcplscan 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 280de55274ae7e41ec225caea5e0f57456777d3ea7a17ce8eb155aafe94cd968
[INFO] running `Command { std: "docker" "start" "-a" "280de55274ae7e41ec225caea5e0f57456777d3ea7a17ce8eb155aafe94cd968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "280de55274ae7e41ec225caea5e0f57456777d3ea7a17ce8eb155aafe94cd968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280de55274ae7e41ec225caea5e0f57456777d3ea7a17ce8eb155aafe94cd968", kill_on_drop: false }`
[INFO] [stdout] 280de55274ae7e41ec225caea5e0f57456777d3ea7a17ce8eb155aafe94cd968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18bea67b4b50c0131b3b2739e95607c141f718ec501c82eb80273489916534eb
[INFO] running `Command { std: "docker" "start" "-a" "18bea67b4b50c0131b3b2739e95607c141f718ec501c82eb80273489916534eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking tcplscan v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/indexing/parser.rs:301:25
[INFO] [stdout]     |
[INFO] [stdout] 301 | /                         match token_type {
[INFO] [stdout] 302 | |                             Keyword::Namespace => {
[INFO] [stdout] 303 | |                                 self.namespace = self.next_token().lexeme;
[INFO] [stdout] 304 | |                                 continue;
[INFO] [stdout] ...   |
[INFO] [stdout] 335 | |                             _ => continue,
[INFO] [stdout] 336 | |                         }
[INFO] [stdout]     | |_________________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/indexing/parser.rs:301:25
[INFO] [stdout]     |
[INFO] [stdout] 301 | /                         match token_type {
[INFO] [stdout] 302 | |                             Keyword::Namespace => {
[INFO] [stdout] 303 | |                                 self.namespace = self.next_token().lexeme;
[INFO] [stdout] 304 | |                                 continue;
[INFO] [stdout] ...   |
[INFO] [stdout] 335 | |                             _ => continue,
[INFO] [stdout] 336 | |                         }
[INFO] [stdout]     | |_________________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tcplscan` (bin "tcplscan") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tcplscan` (bin "tcplscan" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "18bea67b4b50c0131b3b2739e95607c141f718ec501c82eb80273489916534eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18bea67b4b50c0131b3b2739e95607c141f718ec501c82eb80273489916534eb", kill_on_drop: false }`
[INFO] [stdout] 18bea67b4b50c0131b3b2739e95607c141f718ec501c82eb80273489916534eb